As of Gitea version **1.17.0**, create directories in your Gitea custom file path with this name: **/public/css/**. For example, if your **Custom File Path was**`/var/lib/gitea/custom`, you would add folders to reach this directory: `/var/lib/gitea/custom/public/css`. You can use `mkdir -p /var/lib/gitea/custom/public/css` in that case to make things easier for yourself.
Take both *theme-nico.css* and *nicofooter.png* and insert them in this folder.
## Enable Theme
Go to your **app.ini Configuration File** (again, look under the Config page for what this is) and open the **app.ini**. If your file does not have a **[ui]** heading, add the following somewhere in the file:
```bash
[ui]
DEFAULT_THEME = auto
THEMES = auto,gitea,arc-green,nico
```
By adding **nico** to the end of the list you can now select it when you go to your *Appearance* options list. If you want the nico theme to be the default theme, then change **auto** to **nico**